To 25.0 ml of the solution in a glass-stoppered flask add 2 g of
Potassium iodide, followed by 10 ml of 1 M sulphuric acid.
Titrate the liberated iodine with 0.1 M sodium thiosulphate,
Using 3 ml of starch solution, added towards the end of the
Titration, as indicator. Perform a blank determination and make
Necessary correction.
How I'll calculate after this.